BUG: astype("timedelta64[ns]") fails when np.nan is included · Issue #45798 · pandas-dev/pandas (original) (raw)

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Description

Pandas version checks

• I have checked that this issue has not already been reported.
• I have confirmed this bug exists on the latest version of pandas.
• I have confirmed this bug exists on the main branch of pandas.

Reproducible Example

import pandas as pd pd.Series([1, np.nan]).astype("timedelta64[ns]")

Issue Description

Get an error IntCastingNaNError: Cannot convert non-finite values (NA or inf) to integer

Expected Behavior

Cast np.nan as pd.NaT

Installed Versions

INSTALLED VERSIONS

commit : bb1f651
python : 3.9.10.final.0
python-bits : 64
OS : Windows
OS-release : 10
Version : 10.0.19043
machine : AMD64
processor : Intel64 Family 6 Model 142 Stepping 10, GenuineIntel
byteorder : little
LC_ALL : None
LANG : en_US.UTF-8
LOCALE : English_United States.1252

pandas : 1.4.0
numpy : 1.22.1
pytz : 2021.3
dateutil : 2.8.2
pip : 22.0.2
setuptools : 59.8.0
Cython : None
pytest : 6.2.5
hypothesis : None
sphinx : None
blosc : None
feather : None
xlsxwriter : 3.0.2
lxml.etree : 4.7.1
html5lib : None
pymysql : 1.0.2
psycopg2 : None
jinja2 : 3.0.3
IPython : 7.30.1
pandas_datareader: None
bs4 : 4.10.0
bottleneck : None
fastparquet : 0.8.0
fsspec : 2021.11.1
gcsfs : None
matplotlib : 3.5.1
numba : None
numexpr : 2.7.3
odfpy : None
openpyxl : 3.0.9
pandas_gbq : None
pyarrow : 3.0.0
pyreadstat : None
pyxlsb : None
s3fs : 0.4.2
scipy : 1.7.3
sqlalchemy : 1.4.31
tables : 3.7.0
tabulate : 0.8.9
xarray : 0.21.1
xlrd : 2.0.1
xlwt : None
zstandard : None